Magnetic properties and structure of nanocrystalline Fe70Al30 alloy prepared by mechanosynthesis

E. Jartych , J.K. Żurawicz , Dariusz Oleszak , M. Pękała , J. Sarzyński , M. Budzyński


Nanocrystalline powder samples of Fe70Al30 alloy were prepared by the mechanical alloying method. X-ray diffraction, Mössbauer and magnetic studies indicated that the ferromagnetic solid solution with BCC structure was formed with an increase in milling time. The magnetic ordering temperature Tc of the nanocrystalline mechanically alloyed Fe70Al30 was larger than that of the corresponding alloy prepared by rapid quenching, while the average magnetic moment per Fe atom in the investigated milling alloy was smaller than in cold-worked Fe70Al30 alloy. The high value of the hyperfine magnetic field of about 29 T measured in the Fe70Al30 alloy was explained in the frame of a local environment model, where five or more Fe atoms in the nearest neighbourhood of 57Fe constitute the most probable configuration.
Author E. Jartych
E. Jartych,,
, J.K. Żurawicz
J.K. Żurawicz,,
, Dariusz Oleszak ZMKF
Dariusz Oleszak,,
- Division of Construction and Functional Materials
, M. Pękała
M. Pękała,,
, J. Sarzyński
J. Sarzyński,,
, M. Budzyński
M. Budzyński,,
Journal seriesJournal of Magnetism and Magnetic Materials, ISSN 0304-8853
Issue year1998
Keywords in EnglishHyperfine magnetic field, Isomer shift, magnetization, Mechanical alloying, nanocrystallites
Languageen angielski
Score (nominal)25
Publication indicators WoS Impact Factor [Impact Factor WoS]: 2006 = 1.212 (2) - 2007=1.358 (5)
Citation count*34 (2015-03-11)
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